| ZIP Codes: | 11 ZIP Codes (7 Standard, 3 PO Box, 1 Unique) [See All] |
| Area Code: | 406 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 11:54:13 PM |
| Population: | 9,194 [See All] |
| FIPS: | 30087 |
| Land Area: | 5,463 sq mi |
| Water Area: | 17 sq mi |
| Coordinates: | 46.1007, -106.6132 |
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9,194 residents live across 11 ZIPs covering 5,463 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 10,060 to 9,191 from 2014 to 2024 — a -8.6% change. 3 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 59323 (Colstrip, $82,500 median) and poorest ZIP 59043 (Lame Deer, $29,028) are 24.7 miles apart — a 2.8× income gap across local geography.
Median home values vary 3.4× across this county — from $67,800 in 59347 (Rosebud) to $233,900 in 59327 (Forsyth).
Density varies 106× across the county — from 0 people/sq mi in 59347 (Rosebud) to 40 in 59323 (Colstrip).
Educational attainment ranges from 9.4% bachelor's+ in 59043 (Lame Deer) to 25.9% in 59323 (Colstrip) — the breadth of educational profiles across the area.
Within Montana, this is the #25 most populous of 56 counties and ranks #45 for median household income .
Hosts 1 single-entity Unique ZIP: 59004Saint Labre Mission .
Weighted by population, the typical household earns about $51,600 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.6% of adults age 25+ hold a bachelor's degree or higher (1,180 of 5,735 reporting).
7 Standard delivery, 3 PO Box only, 1 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
Rosebud County lost 8.6% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 59043 | Lame Deer | PO Box | 2,727 | $29,028 | 388.8 | -8.0% |
| 59327 | Forsyth | Standard | 2,610 | $52,639 | 2,006.9 | -13.4% |
| 59323 | Colstrip | PO Box | 2,101 | $82,500 | 52.1 | -9.2% |
| 59003 | Ashland | Standard | 1,334 | $44,833 | 796.0 | 16.5% |
| 59347 | Rosebud | Standard | 323 | $57,250 | 852.0 | 5.2% |
| 59012 | Birney | Standard | 44 | $56,250 | 128.9 | -81.6% |
| 59312 | Angela | Standard | 29 | $83,438 | 377.2 | 20.8% |
| 59039 | Ingomar | Standard | 13 | — | 629.0 | -63.9% |
| 59333 | Hathaway | Standard | 10 | — | 9.4 | -37.5% |
| 59083 | Sumatra | PO Box | 3 | — | 223.3 | — |
| 59004 | Ashland | Unique | — | — | 0.0 | — |